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import { IDManager } from 'common/util/id-manager';
describe('IDService', () => {
let manager: IDManager;
beforeEach(() => {
manager = IDManager.getInstance();
manager.reset();
});
it('getNewID should fail on empty string param', () => {
expect(() => { manager.getNewID(''); }).toThrow(Error('ID-Service: No type given!'));
});
it('getNewID should return first ID', () => {
expect(manager.getNewID('text')).toBe('text_1');
});
it('getNewID should return different IDs - counting up', () => {
manager.getNewID('text');
expect(manager.getNewID('text')).toBe('text_2');
});
it('manager should return next id when one is already taken', () => {
manager.addID('text_1');
expect(manager.getNewID('text')).toBe('text_2');
});
it('isIdAvailable should return false when id is already taken', () => {
expect(manager.isIdAvailable('text_1')).toBe(true);
manager.addID('text_1');
expect(manager.isIdAvailable('text_1')).toBe(false);
expect(manager.isIdAvailable('text_2')).toBe(true);
});
it('isIdAvailable should return true when ID is returned (freed up)', () => {
expect(manager.isIdAvailable('text_1')).toBe(true);
manager.addID('text_1');
expect(manager.isIdAvailable('text_1')).toBe(false);
manager.removeId('text_1');
expect(manager.isIdAvailable('text_1')).toBe(true);
});
});